Sink mixer



FIG. 1 is a perspective view of a sink mixer showing our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing of a fluid connection in FIG. 7 is for the purpose of illustrating a portion of the article and forms no part of the claimed design. 

CLAIM The ornamental design for a sink mixer, as shown. 